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<FONT color="green">001</FONT>    /* ========================================================================<a name="line.1"></a>
<FONT color="green">002</FONT>     * JCommon : a free general purpose class library for the Java(tm) platform<a name="line.2"></a>
<FONT color="green">003</FONT>     * ========================================================================<a name="line.3"></a>
<FONT color="green">004</FONT>     *<a name="line.4"></a>
<FONT color="green">005</FONT>     * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.<a name="line.5"></a>
<FONT color="green">006</FONT>     *<a name="line.6"></a>
<FONT color="green">007</FONT>     * Project Info:  http://www.jfree.org/jcommon/index.html<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
<FONT color="green">010</FONT>     * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
<FONT color="green">011</FONT>     * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
<FONT color="green">012</FONT>     * (at your option) any later version.<a name="line.12"></a>
<FONT color="green">013</FONT>     *<a name="line.13"></a>
<FONT color="green">014</FONT>     * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
<FONT color="green">015</FONT>     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
<FONT color="green">016</FONT>     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
<FONT color="green">017</FONT>     * License for more details.<a name="line.17"></a>
<FONT color="green">018</FONT>     *<a name="line.18"></a>
<FONT color="green">019</FONT>     * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
<FONT color="green">020</FONT>     * License along with this library; if not, write to the Free Software<a name="line.20"></a>
<FONT color="green">021</FONT>     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,<a name="line.21"></a>
<FONT color="green">022</FONT>     * USA.<a name="line.22"></a>
<FONT color="green">023</FONT>     *<a name="line.23"></a>
<FONT color="green">024</FONT>     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.<a name="line.24"></a>
<FONT color="green">025</FONT>     * in the United States and other countries.]<a name="line.25"></a>
<FONT color="green">026</FONT>     *<a name="line.26"></a>
<FONT color="green">027</FONT>     * ---------------------<a name="line.27"></a>
<FONT color="green">028</FONT>     * ObjectUtilitiess.java<a name="line.28"></a>
<FONT color="green">029</FONT>     * ---------------------<a name="line.29"></a>
<FONT color="green">030</FONT>     * (C) Copyright 2003-2005, by Object Refinery Limited.<a name="line.30"></a>
<FONT color="green">031</FONT>     *<a name="line.31"></a>
<FONT color="green">032</FONT>     * Original Author:  David Gilbert (for Object Refinery Limited);<a name="line.32"></a>
<FONT color="green">033</FONT>     * Contributor(s):   -;<a name="line.33"></a>
<FONT color="green">034</FONT>     *<a name="line.34"></a>
<FONT color="green">035</FONT>     * $Id: ObjectUtilities.java,v 1.21 2008/09/10 09:24:41 mungady Exp $<a name="line.35"></a>
<FONT color="green">036</FONT>     *<a name="line.36"></a>
<FONT color="green">037</FONT>     * Changes<a name="line.37"></a>
<FONT color="green">038</FONT>     * -------<a name="line.38"></a>
<FONT color="green">039</FONT>     * 25-Mar-2003 : Version 1 (DG);<a name="line.39"></a>
<FONT color="green">040</FONT>     * 15-Sep-2003 : Fixed bug in clone(List) method (DG);<a name="line.40"></a>
<FONT color="green">041</FONT>     * 25-Nov-2004 : Modified clone(Object) method to fail with objects that<a name="line.41"></a>
<FONT color="green">042</FONT>     *               cannot be cloned, added new deepClone(Collection) method.<a name="line.42"></a>
<FONT color="green">043</FONT>     *               Renamed ObjectUtils --&gt; ObjectUtilities (DG);<a name="line.43"></a>
<FONT color="green">044</FONT>     * 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);<a name="line.44"></a>
<FONT color="green">045</FONT>     * 18-Aug-2005 : Added casts to suppress compiler warnings, as suggested in<a name="line.45"></a>
<FONT color="green">046</FONT>     *               patch 1260622 (DG);<a name="line.46"></a>
<FONT color="green">047</FONT>     *<a name="line.47"></a>
<FONT color="green">048</FONT>     */<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>    package org.jfree.util;<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>    import java.io.IOException;<a name="line.52"></a>
<FONT color="green">053</FONT>    import java.io.InputStream;<a name="line.53"></a>
<FONT color="green">054</FONT>    import java.lang.reflect.InvocationTargetException;<a name="line.54"></a>
<FONT color="green">055</FONT>    import java.lang.reflect.Method;<a name="line.55"></a>
<FONT color="green">056</FONT>    import java.lang.reflect.Modifier;<a name="line.56"></a>
<FONT color="green">057</FONT>    import java.net.URL;<a name="line.57"></a>
<FONT color="green">058</FONT>    import java.util.ArrayList;<a name="line.58"></a>
<FONT color="green">059</FONT>    import java.util.Collection;<a name="line.59"></a>
<FONT color="green">060</FONT>    import java.util.Iterator;<a name="line.60"></a>
<FONT color="green">061</FONT>    import java.util.StringTokenizer;<a name="line.61"></a>
<FONT color="green">062</FONT>    <a name="line.62"></a>
<FONT color="green">063</FONT>    /**<a name="line.63"></a>
<FONT color="green">064</FONT>     * A collection of useful static utility methods for handling classes and object<a name="line.64"></a>
<FONT color="green">065</FONT>     * instantiation.<a name="line.65"></a>
<FONT color="green">066</FONT>     *<a name="line.66"></a>
<FONT color="green">067</FONT>     * @author Thomas Morgner<a name="line.67"></a>
<FONT color="green">068</FONT>     */<a name="line.68"></a>
<FONT color="green">069</FONT>    public final class ObjectUtilities {<a name="line.69"></a>
<FONT color="green">070</FONT>    <a name="line.70"></a>
<FONT color="green">071</FONT>        /**<a name="line.71"></a>
<FONT color="green">072</FONT>         * A constant for using the TheadContext as source for the classloader.<a name="line.72"></a>
<FONT color="green">073</FONT>         */<a name="line.73"></a>
<FONT color="green">074</FONT>        public static final String THREAD_CONTEXT = "ThreadContext";<a name="line.74"></a>
<FONT color="green">075</FONT>        /**<a name="line.75"></a>
<FONT color="green">076</FONT>         * A constant for using the ClassContext as source for the classloader.<a name="line.76"></a>
<FONT color="green">077</FONT>         */<a name="line.77"></a>
<FONT color="green">078</FONT>        public static final String CLASS_CONTEXT = "ClassContext";<a name="line.78"></a>
<FONT color="green">079</FONT>    <a name="line.79"></a>
<FONT color="green">080</FONT>        /**<a name="line.80"></a>
<FONT color="green">081</FONT>         * By default use the thread context.<a name="line.81"></a>
<FONT color="green">082</FONT>         */<a name="line.82"></a>
<FONT color="green">083</FONT>        private static String classLoaderSource = THREAD_CONTEXT;<a name="line.83"></a>
<FONT color="green">084</FONT>        /**<a name="line.84"></a>
<FONT color="green">085</FONT>         * The custom classloader to be used (if not null).<a name="line.85"></a>
<FONT color="green">086</FONT>         */<a name="line.86"></a>
<FONT color="green">087</FONT>        private static ClassLoader classLoader;<a name="line.87"></a>
<FONT color="green">088</FONT>    <a name="line.88"></a>
<FONT color="green">089</FONT>        /**<a name="line.89"></a>
<FONT color="green">090</FONT>         * Default constructor - private.<a name="line.90"></a>
<FONT color="green">091</FONT>         */<a name="line.91"></a>
<FONT color="green">092</FONT>        private ObjectUtilities() {<a name="line.92"></a>
<FONT color="green">093</FONT>        }<a name="line.93"></a>
<FONT color="green">094</FONT>    <a name="line.94"></a>
<FONT color="green">095</FONT>        /**<a name="line.95"></a>
<FONT color="green">096</FONT>         * Returns the internal configuration entry, whether the classloader of<a name="line.96"></a>
<FONT color="green">097</FONT>         * the thread context or the context classloader should be used.<a name="line.97"></a>
<FONT color="green">098</FONT>         *<a name="line.98"></a>
<FONT color="green">099</FONT>         * @return the classloader source, either THREAD_CONTEXT or CLASS_CONTEXT.<a name="line.99"></a>
<FONT color="green">100</FONT>         */<a name="line.100"></a>
<FONT color="green">101</FONT>        public static String getClassLoaderSource() {<a name="line.101"></a>
<FONT color="green">102</FONT>            return classLoaderSource;<a name="line.102"></a>
<FONT color="green">103</FONT>        }<a name="line.103"></a>
<FONT color="green">104</FONT>    <a name="line.104"></a>
<FONT color="green">105</FONT>        /**<a name="line.105"></a>
<FONT color="green">106</FONT>         * Defines the internal configuration entry, whether the classloader of<a name="line.106"></a>
<FONT color="green">107</FONT>         * the thread context or the context classloader should be used.<a name="line.107"></a>
<FONT color="green">108</FONT>         * &lt;p/&gt;<a name="line.108"></a>
<FONT color="green">109</FONT>         * This setting can only be defined using the API, there is no safe way<a name="line.109"></a>
<FONT color="green">110</FONT>         * to put this into an external configuration file.<a name="line.110"></a>
<FONT color="green">111</FONT>         *<a name="line.111"></a>
<FONT color="green">112</FONT>         * @param classLoaderSource the classloader source,<a name="line.112"></a>
<FONT color="green">113</FONT>         *                          either THREAD_CONTEXT or CLASS_CONTEXT.<a name="line.113"></a>
<FONT color="green">114</FONT>         */<a name="line.114"></a>
<FONT color="green">115</FONT>        public static void setClassLoaderSource(final String classLoaderSource) {<a name="line.115"></a>
<FONT color="green">116</FONT>            ObjectUtilities.classLoaderSource = classLoaderSource;<a name="line.116"></a>
<FONT color="green">117</FONT>        }<a name="line.117"></a>
<FONT color="green">118</FONT>    <a name="line.118"></a>
<FONT color="green">119</FONT>        /**<a name="line.119"></a>
<FONT color="green">120</FONT>         * Returns &lt;code&gt;true&lt;/code&gt; if the two objects are equal OR both<a name="line.120"></a>
<FONT color="green">121</FONT>         * &lt;code&gt;null&lt;/code&gt;.<a name="line.121"></a>
<FONT color="green">122</FONT>         *<a name="line.122"></a>
<FONT color="green">123</FONT>         * @param o1 object 1 (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.123"></a>
<FONT color="green">124</FONT>         * @param o2 object 2 (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.124"></a>
<FONT color="green">125</FONT>         * @return &lt;code&gt;true&lt;/code&gt; or &lt;code&gt;false&lt;/code&gt;.<a name="line.125"></a>
<FONT color="green">126</FONT>         */<a name="line.126"></a>
<FONT color="green">127</FONT>        public static boolean equal(final Object o1, final Object o2) {<a name="line.127"></a>
<FONT color="green">128</FONT>            if (o1 == o2) {<a name="line.128"></a>
<FONT color="green">129</FONT>                return true;<a name="line.129"></a>
<FONT color="green">130</FONT>            }<a name="line.130"></a>
<FONT color="green">131</FONT>            if (o1 != null) {<a name="line.131"></a>
<FONT color="green">132</FONT>                return o1.equals(o2);<a name="line.132"></a>
<FONT color="green">133</FONT>            }<a name="line.133"></a>
<FONT color="green">134</FONT>            else {<a name="line.134"></a>
<FONT color="green">135</FONT>                return false;<a name="line.135"></a>
<FONT color="green">136</FONT>            }<a name="line.136"></a>
<FONT color="green">137</FONT>        }<a name="line.137"></a>
<FONT color="green">138</FONT>    <a name="line.138"></a>
<FONT color="green">139</FONT>        /**<a name="line.139"></a>
<FONT color="green">140</FONT>         * Returns a hash code for an object, or zero if the object is<a name="line.140"></a>
<FONT color="green">141</FONT>         * &lt;code&gt;null&lt;/code&gt;.<a name="line.141"></a>
<FONT color="green">142</FONT>         *<a name="line.142"></a>
<FONT color="green">143</FONT>         * @param object the object (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.143"></a>
<FONT color="green">144</FONT>         * @return The object's hash code (or zero if the object is<a name="line.144"></a>
<FONT color="green">145</FONT>         *         &lt;code&gt;null&lt;/code&gt;).<a name="line.145"></a>
<FONT color="green">146</FONT>         */<a name="line.146"></a>
<FONT color="green">147</FONT>        public static int hashCode(final Object object) {<a name="line.147"></a>
<FONT color="green">148</FONT>            int result = 0;<a name="line.148"></a>
<FONT color="green">149</FONT>            if (object != null) {<a name="line.149"></a>
<FONT color="green">150</FONT>                result = object.hashCode();<a name="line.150"></a>
<FONT color="green">151</FONT>            }<a name="line.151"></a>
<FONT color="green">152</FONT>            return result;<a name="line.152"></a>
<FONT color="green">153</FONT>        }<a name="line.153"></a>
<FONT color="green">154</FONT>    <a name="line.154"></a>
<FONT color="green">155</FONT>        /**<a name="line.155"></a>
<FONT color="green">156</FONT>         * Returns a clone of the specified object, if it can be cloned, otherwise<a name="line.156"></a>
<FONT color="green">157</FONT>         * throws a CloneNotSupportedException.<a name="line.157"></a>
<FONT color="green">158</FONT>         *<a name="line.158"></a>
<FONT color="green">159</FONT>         * @param object the object to clone (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.159"></a>
<FONT color="green">160</FONT>         * @return A clone of the specified object.<a name="line.160"></a>
<FONT color="green">161</FONT>         * @throws CloneNotSupportedException if the object cannot be cloned.<a name="line.161"></a>
<FONT color="green">162</FONT>         */<a name="line.162"></a>
<FONT color="green">163</FONT>        public static Object clone(final Object object)<a name="line.163"></a>
<FONT color="green">164</FONT>            throws CloneNotSupportedException {<a name="line.164"></a>
<FONT color="green">165</FONT>            if (object == null) {<a name="line.165"></a>
<FONT color="green">166</FONT>                throw new IllegalArgumentException("Null 'object' argument.");<a name="line.166"></a>
<FONT color="green">167</FONT>            }<a name="line.167"></a>
<FONT color="green">168</FONT>            if (object instanceof PublicCloneable) {<a name="line.168"></a>
<FONT color="green">169</FONT>                final PublicCloneable pc = (PublicCloneable) object;<a name="line.169"></a>
<FONT color="green">170</FONT>                return pc.clone();<a name="line.170"></a>
<FONT color="green">171</FONT>            }<a name="line.171"></a>
<FONT color="green">172</FONT>            else {<a name="line.172"></a>
<FONT color="green">173</FONT>                try {<a name="line.173"></a>
<FONT color="green">174</FONT>                    final Method method = object.getClass().getMethod("clone",<a name="line.174"></a>
<FONT color="green">175</FONT>                            (Class[]) null);<a name="line.175"></a>
<FONT color="green">176</FONT>                    if (Modifier.isPublic(method.getModifiers())) {<a name="line.176"></a>
<FONT color="green">177</FONT>                        return method.invoke(object, (Object[]) null);<a name="line.177"></a>
<FONT color="green">178</FONT>                    }<a name="line.178"></a>
<FONT color="green">179</FONT>                }<a name="line.179"></a>
<FONT color="green">180</FONT>                catch (NoSuchMethodException e) {<a name="line.180"></a>
<FONT color="green">181</FONT>                    Log.warn("Object without clone() method is impossible.");<a name="line.181"></a>
<FONT color="green">182</FONT>                }<a name="line.182"></a>
<FONT color="green">183</FONT>                catch (IllegalAccessException e) {<a name="line.183"></a>
<FONT color="green">184</FONT>                    Log.warn("Object.clone(): unable to call method.");<a name="line.184"></a>
<FONT color="green">185</FONT>                }<a name="line.185"></a>
<FONT color="green">186</FONT>                catch (InvocationTargetException e) {<a name="line.186"></a>
<FONT color="green">187</FONT>                    Log.warn("Object without clone() method is impossible.");<a name="line.187"></a>
<FONT color="green">188</FONT>                }<a name="line.188"></a>
<FONT color="green">189</FONT>            }<a name="line.189"></a>
<FONT color="green">190</FONT>            throw new CloneNotSupportedException("Failed to clone.");<a name="line.190"></a>
<FONT color="green">191</FONT>        }<a name="line.191"></a>
<FONT color="green">192</FONT>    <a name="line.192"></a>
<FONT color="green">193</FONT>        /**<a name="line.193"></a>
<FONT color="green">194</FONT>         * Returns a new collection containing clones of all the items in the<a name="line.194"></a>
<FONT color="green">195</FONT>         * specified collection.<a name="line.195"></a>
<FONT color="green">196</FONT>         *<a name="line.196"></a>
<FONT color="green">197</FONT>         * @param collection the collection (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.197"></a>
<FONT color="green">198</FONT>         * @return A new collection containing clones of all the items in the<a name="line.198"></a>
<FONT color="green">199</FONT>         *         specified collection.<a name="line.199"></a>
<FONT color="green">200</FONT>         * @throws CloneNotSupportedException if any of the items in the collection<a name="line.200"></a>
<FONT color="green">201</FONT>         *                                    cannot be cloned.<a name="line.201"></a>
<FONT color="green">202</FONT>         */<a name="line.202"></a>
<FONT color="green">203</FONT>        public static Collection deepClone(final Collection collection)<a name="line.203"></a>
<FONT color="green">204</FONT>            throws CloneNotSupportedException {<a name="line.204"></a>
<FONT color="green">205</FONT>    <a name="line.205"></a>
<FONT color="green">206</FONT>            if (collection == null) {<a name="line.206"></a>
<FONT color="green">207</FONT>                throw new IllegalArgumentException("Null 'collection' argument.");<a name="line.207"></a>
<FONT color="green">208</FONT>            }<a name="line.208"></a>
<FONT color="green">209</FONT>            // all JDK-Collections are cloneable ...<a name="line.209"></a>
<FONT color="green">210</FONT>            // and if the collection is not clonable, then we should throw<a name="line.210"></a>
<FONT color="green">211</FONT>            // a CloneNotSupportedException anyway ...<a name="line.211"></a>
<FONT color="green">212</FONT>            final Collection result<a name="line.212"></a>
<FONT color="green">213</FONT>                = (Collection) ObjectUtilities.clone(collection);<a name="line.213"></a>
<FONT color="green">214</FONT>            result.clear();<a name="line.214"></a>
<FONT color="green">215</FONT>            final Iterator iterator = collection.iterator();<a name="line.215"></a>
<FONT color="green">216</FONT>            while (iterator.hasNext()) {<a name="line.216"></a>
<FONT color="green">217</FONT>                final Object item = iterator.next();<a name="line.217"></a>
<FONT color="green">218</FONT>                if (item != null) {<a name="line.218"></a>
<FONT color="green">219</FONT>                    result.add(clone(item));<a name="line.219"></a>
<FONT color="green">220</FONT>                }<a name="line.220"></a>
<FONT color="green">221</FONT>                else {<a name="line.221"></a>
<FONT color="green">222</FONT>                    result.add(null);<a name="line.222"></a>
<FONT color="green">223</FONT>                }<a name="line.223"></a>
<FONT color="green">224</FONT>            }<a name="line.224"></a>
<FONT color="green">225</FONT>            return result;<a name="line.225"></a>
<FONT color="green">226</FONT>        }<a name="line.226"></a>
<FONT color="green">227</FONT>    <a name="line.227"></a>
<FONT color="green">228</FONT>        /**<a name="line.228"></a>
<FONT color="green">229</FONT>         * Redefines the custom classloader.<a name="line.229"></a>
<FONT color="green">230</FONT>         *<a name="line.230"></a>
<FONT color="green">231</FONT>         * @param classLoader the new classloader or null to use the default.<a name="line.231"></a>
<FONT color="green">232</FONT>         */<a name="line.232"></a>
<FONT color="green">233</FONT>        public static synchronized void setClassLoader(<a name="line.233"></a>
<FONT color="green">234</FONT>                final ClassLoader classLoader) {<a name="line.234"></a>
<FONT color="green">235</FONT>            ObjectUtilities.classLoader = classLoader;<a name="line.235"></a>
<FONT color="green">236</FONT>        }<a name="line.236"></a>
<FONT color="green">237</FONT>    <a name="line.237"></a>
<FONT color="green">238</FONT>        /**<a name="line.238"></a>
<FONT color="green">239</FONT>         * Returns the custom classloader or null, if no custom classloader is defined.<a name="line.239"></a>
<FONT color="green">240</FONT>         *<a name="line.240"></a>
<FONT color="green">241</FONT>         * @return the custom classloader or null to use the default.<a name="line.241"></a>
<FONT color="green">242</FONT>         */<a name="line.242"></a>
<FONT color="green">243</FONT>        public static ClassLoader getClassLoader() {<a name="line.243"></a>
<FONT color="green">244</FONT>          return classLoader;<a name="line.244"></a>
<FONT color="green">245</FONT>        }<a name="line.245"></a>
<FONT color="green">246</FONT>    <a name="line.246"></a>
<FONT color="green">247</FONT>        /**<a name="line.247"></a>
<FONT color="green">248</FONT>         * Returns the classloader, which was responsible for loading the given<a name="line.248"></a>
<FONT color="green">249</FONT>         * class.<a name="line.249"></a>
<FONT color="green">250</FONT>         *<a name="line.250"></a>
<FONT color="green">251</FONT>         * @param c the classloader, either an application class loader or the<a name="line.251"></a>
<FONT color="green">252</FONT>         *          boot loader.<a name="line.252"></a>
<FONT color="green">253</FONT>         * @return the classloader, never null.<a name="line.253"></a>
<FONT color="green">254</FONT>         * @throws SecurityException if the SecurityManager does not allow to grab<a name="line.254"></a>
<FONT color="green">255</FONT>         *                           the context classloader.<a name="line.255"></a>
<FONT color="green">256</FONT>         */<a name="line.256"></a>
<FONT color="green">257</FONT>        public static ClassLoader getClassLoader(final Class c) {<a name="line.257"></a>
<FONT color="green">258</FONT>            final String localClassLoaderSource;<a name="line.258"></a>
<FONT color="green">259</FONT>            synchronized(ObjectUtilities.class)<a name="line.259"></a>
<FONT color="green">260</FONT>            {<a name="line.260"></a>
<FONT color="green">261</FONT>              if (classLoader != null) {<a name="line.261"></a>
<FONT color="green">262</FONT>                  return classLoader;<a name="line.262"></a>
<FONT color="green">263</FONT>              }<a name="line.263"></a>
<FONT color="green">264</FONT>              localClassLoaderSource = classLoaderSource;<a name="line.264"></a>
<FONT color="green">265</FONT>            }<a name="line.265"></a>
<FONT color="green">266</FONT>    <a name="line.266"></a>
<FONT color="green">267</FONT>            if ("ThreadContext".equals(localClassLoaderSource)) {<a name="line.267"></a>
<FONT color="green">268</FONT>                final ClassLoader threadLoader = Thread.currentThread().getContextClassLoader();<a name="line.268"></a>
<FONT color="green">269</FONT>                if (threadLoader != null) {<a name="line.269"></a>
<FONT color="green">270</FONT>                    return threadLoader;<a name="line.270"></a>
<FONT color="green">271</FONT>                }<a name="line.271"></a>
<FONT color="green">272</FONT>            }<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>            // Context classloader - do not cache ..<a name="line.274"></a>
<FONT color="green">275</FONT>            final ClassLoader applicationCL = c.getClassLoader();<a name="line.275"></a>
<FONT color="green">276</FONT>            if (applicationCL == null) {<a name="line.276"></a>
<FONT color="green">277</FONT>                return ClassLoader.getSystemClassLoader();<a name="line.277"></a>
<FONT color="green">278</FONT>            }<a name="line.278"></a>
<FONT color="green">279</FONT>            else {<a name="line.279"></a>
<FONT color="green">280</FONT>                return applicationCL;<a name="line.280"></a>
<FONT color="green">281</FONT>            }<a name="line.281"></a>
<FONT color="green">282</FONT>        }<a name="line.282"></a>
<FONT color="green">283</FONT>    <a name="line.283"></a>
<FONT color="green">284</FONT>    <a name="line.284"></a>
<FONT color="green">285</FONT>        /**<a name="line.285"></a>
<FONT color="green">286</FONT>         * Returns the resource specified by the &lt;strong&gt;absolute&lt;/strong&gt; name.<a name="line.286"></a>
<FONT color="green">287</FONT>         *<a name="line.287"></a>
<FONT color="green">288</FONT>         * @param name the name of the resource<a name="line.288"></a>
<FONT color="green">289</FONT>         * @param c    the source class<a name="line.289"></a>
<FONT color="green">290</FONT>         * @return the url of the resource or null, if not found.<a name="line.290"></a>
<FONT color="green">291</FONT>         */<a name="line.291"></a>
<FONT color="green">292</FONT>        public static URL getResource(final String name, final Class c) {<a name="line.292"></a>
<FONT color="green">293</FONT>            final ClassLoader cl = getClassLoader(c);<a name="line.293"></a>
<FONT color="green">294</FONT>            if (cl == null) {<a name="line.294"></a>
<FONT color="green">295</FONT>                return null;<a name="line.295"></a>
<FONT color="green">296</FONT>            }<a name="line.296"></a>
<FONT color="green">297</FONT>            return cl.getResource(name);<a name="line.297"></a>
<FONT color="green">298</FONT>        }<a name="line.298"></a>
<FONT color="green">299</FONT>    <a name="line.299"></a>
<FONT color="green">300</FONT>        /**<a name="line.300"></a>
<FONT color="green">301</FONT>         * Returns the resource specified by the &lt;strong&gt;relative&lt;/strong&gt; name.<a name="line.301"></a>
<FONT color="green">302</FONT>         *<a name="line.302"></a>
<FONT color="green">303</FONT>         * @param name the name of the resource relative to the given class<a name="line.303"></a>
<FONT color="green">304</FONT>         * @param c    the source class<a name="line.304"></a>
<FONT color="green">305</FONT>         * @return the url of the resource or null, if not found.<a name="line.305"></a>
<FONT color="green">306</FONT>         */<a name="line.306"></a>
<FONT color="green">307</FONT>        public static URL getResourceRelative(final String name, final Class c) {<a name="line.307"></a>
<FONT color="green">308</FONT>            final ClassLoader cl = getClassLoader(c);<a name="line.308"></a>
<FONT color="green">309</FONT>            final String cname = convertName(name, c);<a name="line.309"></a>
<FONT color="green">310</FONT>            if (cl == null) {<a name="line.310"></a>
<FONT color="green">311</FONT>                return null;<a name="line.311"></a>
<FONT color="green">312</FONT>            }<a name="line.312"></a>
<FONT color="green">313</FONT>            return cl.getResource(cname);<a name="line.313"></a>
<FONT color="green">314</FONT>        }<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>
<FONT color="green">316</FONT>        /**<a name="line.316"></a>
<FONT color="green">317</FONT>         * Transform the class-relative resource name into a global name by<a name="line.317"></a>
<FONT color="green">318</FONT>         * appending it to the classes package name. If the name is already a<a name="line.318"></a>
<FONT color="green">319</FONT>         * global name (the name starts with a "/"), then the name is returned<a name="line.319"></a>
<FONT color="green">320</FONT>         * unchanged.<a name="line.320"></a>
<FONT color="green">321</FONT>         *<a name="line.321"></a>
<FONT color="green">322</FONT>         * @param name the resource name<a name="line.322"></a>
<FONT color="green">323</FONT>         * @param c    the class which the resource is relative to<a name="line.323"></a>
<FONT color="green">324</FONT>         * @return the tranformed name.<a name="line.324"></a>
<FONT color="green">325</FONT>         */<a name="line.325"></a>
<FONT color="green">326</FONT>        private static String convertName(final String name, Class c) {<a name="line.326"></a>
<FONT color="green">327</FONT>            if (name.startsWith("/")) {<a name="line.327"></a>
<FONT color="green">328</FONT>                // strip leading slash..<a name="line.328"></a>
<FONT color="green">329</FONT>                return name.substring(1);<a name="line.329"></a>
<FONT color="green">330</FONT>            }<a name="line.330"></a>
<FONT color="green">331</FONT>    <a name="line.331"></a>
<FONT color="green">332</FONT>            // we cant work on arrays, so remove them ...<a name="line.332"></a>
<FONT color="green">333</FONT>            while (c.isArray()) {<a name="line.333"></a>
<FONT color="green">334</FONT>                c = c.getComponentType();<a name="line.334"></a>
<FONT color="green">335</FONT>            }<a name="line.335"></a>
<FONT color="green">336</FONT>            // extract the package ...<a name="line.336"></a>
<FONT color="green">337</FONT>            final String baseName = c.getName();<a name="line.337"></a>
<FONT color="green">338</FONT>            final int index = baseName.lastIndexOf('.');<a name="line.338"></a>
<FONT color="green">339</FONT>            if (index == -1) {<a name="line.339"></a>
<FONT color="green">340</FONT>                return name;<a name="line.340"></a>
<FONT color="green">341</FONT>            }<a name="line.341"></a>
<FONT color="green">342</FONT>    <a name="line.342"></a>
<FONT color="green">343</FONT>            final String pkgName = baseName.substring(0, index);<a name="line.343"></a>
<FONT color="green">344</FONT>            return pkgName.replace('.', '/') + "/" + name;<a name="line.344"></a>
<FONT color="green">345</FONT>        }<a name="line.345"></a>
<FONT color="green">346</FONT>    <a name="line.346"></a>
<FONT color="green">347</FONT>        /**<a name="line.347"></a>
<FONT color="green">348</FONT>         * Returns the inputstream for the resource specified by the<a name="line.348"></a>
<FONT color="green">349</FONT>         * &lt;strong&gt;absolute&lt;/strong&gt; name.<a name="line.349"></a>
<FONT color="green">350</FONT>         *<a name="line.350"></a>
<FONT color="green">351</FONT>         * @param name the name of the resource<a name="line.351"></a>
<FONT color="green">352</FONT>         * @param context the source class<a name="line.352"></a>
<FONT color="green">353</FONT>         * @return the url of the resource or null, if not found.<a name="line.353"></a>
<FONT color="green">354</FONT>         */<a name="line.354"></a>
<FONT color="green">355</FONT>        public static InputStream getResourceAsStream(final String name,<a name="line.355"></a>
<FONT color="green">356</FONT>                                                      final Class context) {<a name="line.356"></a>
<FONT color="green">357</FONT>            final URL url = getResource(name, context);<a name="line.357"></a>
<FONT color="green">358</FONT>            if (url == null) {<a name="line.358"></a>
<FONT color="green">359</FONT>                return null;<a name="line.359"></a>
<FONT color="green">360</FONT>            }<a name="line.360"></a>
<FONT color="green">361</FONT>    <a name="line.361"></a>
<FONT color="green">362</FONT>            try {<a name="line.362"></a>
<FONT color="green">363</FONT>                return url.openStream();<a name="line.363"></a>
<FONT color="green">364</FONT>            }<a name="line.364"></a>
<FONT color="green">365</FONT>            catch (IOException e) {<a name="line.365"></a>
<FONT color="green">366</FONT>                return null;<a name="line.366"></a>
<FONT color="green">367</FONT>            }<a name="line.367"></a>
<FONT color="green">368</FONT>        }<a name="line.368"></a>
<FONT color="green">369</FONT>    <a name="line.369"></a>
<FONT color="green">370</FONT>        /**<a name="line.370"></a>
<FONT color="green">371</FONT>         * Returns the inputstream for the resource specified by the<a name="line.371"></a>
<FONT color="green">372</FONT>         * &lt;strong&gt;relative&lt;/strong&gt; name.<a name="line.372"></a>
<FONT color="green">373</FONT>         *<a name="line.373"></a>
<FONT color="green">374</FONT>         * @param name the name of the resource relative to the given class<a name="line.374"></a>
<FONT color="green">375</FONT>         * @param context the source class<a name="line.375"></a>
<FONT color="green">376</FONT>         * @return the url of the resource or null, if not found.<a name="line.376"></a>
<FONT color="green">377</FONT>         */<a name="line.377"></a>
<FONT color="green">378</FONT>        public static InputStream getResourceRelativeAsStream<a name="line.378"></a>
<FONT color="green">379</FONT>            (final String name, final Class context) {<a name="line.379"></a>
<FONT color="green">380</FONT>            final URL url = getResourceRelative(name, context);<a name="line.380"></a>
<FONT color="green">381</FONT>            if (url == null) {<a name="line.381"></a>
<FONT color="green">382</FONT>                return null;<a name="line.382"></a>
<FONT color="green">383</FONT>            }<a name="line.383"></a>
<FONT color="green">384</FONT>    <a name="line.384"></a>
<FONT color="green">385</FONT>            try {<a name="line.385"></a>
<FONT color="green">386</FONT>                return url.openStream();<a name="line.386"></a>
<FONT color="green">387</FONT>            }<a name="line.387"></a>
<FONT color="green">388</FONT>            catch (IOException e) {<a name="line.388"></a>
<FONT color="green">389</FONT>                return null;<a name="line.389"></a>
<FONT color="green">390</FONT>            }<a name="line.390"></a>
<FONT color="green">391</FONT>        }<a name="line.391"></a>
<FONT color="green">392</FONT>    <a name="line.392"></a>
<FONT color="green">393</FONT>        /**<a name="line.393"></a>
<FONT color="green">394</FONT>         * Tries to create a new instance of the given class. This is a short cut<a name="line.394"></a>
<FONT color="green">395</FONT>         * for the common bean instantiation code.<a name="line.395"></a>
<FONT color="green">396</FONT>         *<a name="line.396"></a>
<FONT color="green">397</FONT>         * @param className the class name as String, never null.<a name="line.397"></a>
<FONT color="green">398</FONT>         * @param source    the source class, from where to get the classloader.<a name="line.398"></a>
<FONT color="green">399</FONT>         * @return the instantiated object or null, if an error occured.<a name="line.399"></a>
<FONT color="green">400</FONT>         */<a name="line.400"></a>
<FONT color="green">401</FONT>        public static Object loadAndInstantiate(final String className,<a name="line.401"></a>
<FONT color="green">402</FONT>                                                final Class source) {<a name="line.402"></a>
<FONT color="green">403</FONT>            try {<a name="line.403"></a>
<FONT color="green">404</FONT>                final ClassLoader loader = getClassLoader(source);<a name="line.404"></a>
<FONT color="green">405</FONT>                final Class c = loader.loadClass(className);<a name="line.405"></a>
<FONT color="green">406</FONT>                return c.newInstance();<a name="line.406"></a>
<FONT color="green">407</FONT>            }<a name="line.407"></a>
<FONT color="green">408</FONT>            catch (Exception e) {<a name="line.408"></a>
<FONT color="green">409</FONT>                return null;<a name="line.409"></a>
<FONT color="green">410</FONT>            }<a name="line.410"></a>
<FONT color="green">411</FONT>        }<a name="line.411"></a>
<FONT color="green">412</FONT>    <a name="line.412"></a>
<FONT color="green">413</FONT>        /**<a name="line.413"></a>
<FONT color="green">414</FONT>         * Tries to create a new instance of the given class. This is a short cut<a name="line.414"></a>
<FONT color="green">415</FONT>         * for the common bean instantiation code. This method is a type-safe method<a name="line.415"></a>
<FONT color="green">416</FONT>         * and will not instantiate the class unless it is an instance of the given<a name="line.416"></a>
<FONT color="green">417</FONT>         * type.<a name="line.417"></a>
<FONT color="green">418</FONT>         *<a name="line.418"></a>
<FONT color="green">419</FONT>         * @param className the class name as String, never null.<a name="line.419"></a>
<FONT color="green">420</FONT>         * @param source    the source class, from where to get the classloader.<a name="line.420"></a>
<FONT color="green">421</FONT>         * @param type  the type.<a name="line.421"></a>
<FONT color="green">422</FONT>         * @return the instantiated object or null, if an error occurred.<a name="line.422"></a>
<FONT color="green">423</FONT>         */<a name="line.423"></a>
<FONT color="green">424</FONT>        public static Object loadAndInstantiate(final String className,<a name="line.424"></a>
<FONT color="green">425</FONT>                                                final Class source,<a name="line.425"></a>
<FONT color="green">426</FONT>                                                final Class type) {<a name="line.426"></a>
<FONT color="green">427</FONT>            try {<a name="line.427"></a>
<FONT color="green">428</FONT>                final ClassLoader loader = getClassLoader(source);<a name="line.428"></a>
<FONT color="green">429</FONT>                final Class c = loader.loadClass(className);<a name="line.429"></a>
<FONT color="green">430</FONT>                if (type.isAssignableFrom(c)) {<a name="line.430"></a>
<FONT color="green">431</FONT>                    return c.newInstance();<a name="line.431"></a>
<FONT color="green">432</FONT>                }<a name="line.432"></a>
<FONT color="green">433</FONT>            }<a name="line.433"></a>
<FONT color="green">434</FONT>            catch (Exception e) {<a name="line.434"></a>
<FONT color="green">435</FONT>                return null;<a name="line.435"></a>
<FONT color="green">436</FONT>            }<a name="line.436"></a>
<FONT color="green">437</FONT>            return null;<a name="line.437"></a>
<FONT color="green">438</FONT>        }<a name="line.438"></a>
<FONT color="green">439</FONT>    <a name="line.439"></a>
<FONT color="green">440</FONT>        /**<a name="line.440"></a>
<FONT color="green">441</FONT>         * Returns &lt;code&gt;true&lt;/code&gt; if this is version 1.4 or later of the<a name="line.441"></a>
<FONT color="green">442</FONT>         * Java runtime.<a name="line.442"></a>
<FONT color="green">443</FONT>         *<a name="line.443"></a>
<FONT color="green">444</FONT>         * @return A boolean.<a name="line.444"></a>
<FONT color="green">445</FONT>         */<a name="line.445"></a>
<FONT color="green">446</FONT>        public static boolean isJDK14() {<a name="line.446"></a>
<FONT color="green">447</FONT>            try {<a name="line.447"></a>
<FONT color="green">448</FONT>              final ClassLoader loader = getClassLoader(ObjectUtilities.class);<a name="line.448"></a>
<FONT color="green">449</FONT>              if (loader != null) {<a name="line.449"></a>
<FONT color="green">450</FONT>                  try {<a name="line.450"></a>
<FONT color="green">451</FONT>                    loader.loadClass("java.util.RandomAccess");<a name="line.451"></a>
<FONT color="green">452</FONT>                    return true;<a name="line.452"></a>
<FONT color="green">453</FONT>                  }<a name="line.453"></a>
<FONT color="green">454</FONT>                  catch (ClassNotFoundException e) {<a name="line.454"></a>
<FONT color="green">455</FONT>                    return false;<a name="line.455"></a>
<FONT color="green">456</FONT>                  }<a name="line.456"></a>
<FONT color="green">457</FONT>                  catch(Exception e) {<a name="line.457"></a>
<FONT color="green">458</FONT>                    // do nothing, but do not crash ...<a name="line.458"></a>
<FONT color="green">459</FONT>                  }<a name="line.459"></a>
<FONT color="green">460</FONT>              }<a name="line.460"></a>
<FONT color="green">461</FONT>            }<a name="line.461"></a>
<FONT color="green">462</FONT>            catch (Exception e) {<a name="line.462"></a>
<FONT color="green">463</FONT>              // cant do anything about it, we have to accept and ignore it ..<a name="line.463"></a>
<FONT color="green">464</FONT>            }<a name="line.464"></a>
<FONT color="green">465</FONT>    <a name="line.465"></a>
<FONT color="green">466</FONT>            // OK, the quick and dirty, but secure way failed. Lets try it<a name="line.466"></a>
<FONT color="green">467</FONT>            // using the standard way.<a name="line.467"></a>
<FONT color="green">468</FONT>            try {<a name="line.468"></a>
<FONT color="green">469</FONT>                final String version = System.getProperty<a name="line.469"></a>
<FONT color="green">470</FONT>                        ("java.vm.specification.version");<a name="line.470"></a>
<FONT color="green">471</FONT>                // parse the beast...<a name="line.471"></a>
<FONT color="green">472</FONT>                if (version == null) {<a name="line.472"></a>
<FONT color="green">473</FONT>                    return false;<a name="line.473"></a>
<FONT color="green">474</FONT>                }<a name="line.474"></a>
<FONT color="green">475</FONT>    <a name="line.475"></a>
<FONT color="green">476</FONT>                String[] versions = parseVersions(version);<a name="line.476"></a>
<FONT color="green">477</FONT>                String[] target = new String[]{ "1", "4" };<a name="line.477"></a>
<FONT color="green">478</FONT>                return (ArrayUtilities.compareVersionArrays(versions, target) &gt;= 0);<a name="line.478"></a>
<FONT color="green">479</FONT>            }<a name="line.479"></a>
<FONT color="green">480</FONT>            catch(Exception e) {<a name="line.480"></a>
<FONT color="green">481</FONT>                return false;<a name="line.481"></a>
<FONT color="green">482</FONT>            }<a name="line.482"></a>
<FONT color="green">483</FONT>        }<a name="line.483"></a>
<FONT color="green">484</FONT>    <a name="line.484"></a>
<FONT color="green">485</FONT>        private static String[] parseVersions (String version)<a name="line.485"></a>
<FONT color="green">486</FONT>        {<a name="line.486"></a>
<FONT color="green">487</FONT>          if (version == null)<a name="line.487"></a>
<FONT color="green">488</FONT>          {<a name="line.488"></a>
<FONT color="green">489</FONT>            return new String[0];<a name="line.489"></a>
<FONT color="green">490</FONT>          }<a name="line.490"></a>
<FONT color="green">491</FONT>    <a name="line.491"></a>
<FONT color="green">492</FONT>          final ArrayList versions = new ArrayList();<a name="line.492"></a>
<FONT color="green">493</FONT>          final StringTokenizer strtok = new StringTokenizer(version, ".");<a name="line.493"></a>
<FONT color="green">494</FONT>          while (strtok.hasMoreTokens())<a name="line.494"></a>
<FONT color="green">495</FONT>          {<a name="line.495"></a>
<FONT color="green">496</FONT>            versions.add (strtok.nextToken());<a name="line.496"></a>
<FONT color="green">497</FONT>          }<a name="line.497"></a>
<FONT color="green">498</FONT>          return (String[]) versions.toArray(new String[versions.size()]);<a name="line.498"></a>
<FONT color="green">499</FONT>        }<a name="line.499"></a>
<FONT color="green">500</FONT>    }<a name="line.500"></a>




























































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